I have found another lightweight fusible interfacing that could be used to stabilize recycled neckties for use in quilts and clothing projects.  This is a product from Fairfield called "Stabilize".  I received a piece to test and found it supple when fused and easy to use.  It is a man-made fiber, so requires a press-cloth used with a hot iron (though I did not use one in the test).  It is still a bit heavier than my favorite from HTC, but is very useable and inexpensive.  Find it at Fairfield World.